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Searching for HI Absorbing Gas in AGN

Published online by Cambridge University Press:  13 May 2016

Y.M. Pihlström ,
J.E. Conway  and
R.C. Vermeulen
Y.M. Pihlström
Affiliation:
Onsala Space Observatory, S-439 92 Onsala, Sweden
J.E. Conway
Affiliation:
Onsala Space Observatory, S-439 92 Onsala, Sweden
R.C. Vermeulen
Affiliation:
Netherlands Foundation for Research in Astronomy, P.O. Box 2, 7990 AA Dwingeloo, The Netherlands

Abstract

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With the aim of probing HI gas in AGN we have searched different samples of radio sources for the 21cm atomic hydrogen line in absorption. Depending on the source morphology, we are able to probe gas that either belongs to the host galaxy ISM, or gas that is situated on scales < 1kpc which then may be connected with the AGN fueling. For the HI absorption detected in 3C216, we argue that such sub-kpc scale gas instead might be due to a jet-cloud interaction.

Type
The Inner Regions of Galaxies
Information
Symposium - International Astronomical Union , Volume 205: Galaxies and their Constituents at the Highest Angular Resolutions , 2001 , pp. 190 - 191
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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